Delphi TC1948 Suspension Control Arm - Rear Right Upper Forward

OE-Style Rear Right Upper Forward Control Arm

Delphi TC1948 is a suspension control arm built for the rear right upper forward position on select Mercedes-Benz applications. It uses an aluminum casting/forged construction with neoprene rubber bushings to support precise suspension geometry and consistent road feel.

Engineered from Delphi OE expertise, this standard replacement control arm is tested for demanding temperature extremes and salt-spray exposure, with dimensional and material analysis used to match OE and aftermarket requirements more closely. Delphi TC1948 is a direct-fit service part for Mercedes-Benz E-Class and SL-Class rear suspension repair.

Key Features

• Aluminum construction with casting/forged design
• Neoprene rubber bushings included
• Passivation finish for added corrosion resistance
• Standard replacement grade for rear suspension service
• Position: rear right upper forward
• Not adjustable; ball joint not included
• Fits Mercedes-Benz E320, E350, E500, E550, E55 AMG, E280, E300, CLS500, CLS550, SL500, SL550, SL600, and SL65 AMG applications listed below

Detailed Description

Delphi TC1948 is a rear right upper forward suspension control arm for select Mercedes-Benz models, including E320, E350, E500, E550, CLS550, SL500, SL550, SL600, and related applications. The aluminum body helps keep weight down while maintaining the rigidity needed for stable rear suspension alignment. The included bushings use neoprene rubber to support controlled movement and reduce unwanted play at the mounting points. This part cross-references Beck/Arnley 102-6305 for the same application.

Delphi applies OE-level dimensional and material analysis to help ensure proper fit and function in the rear suspension. The part number TC1948 is also referenced in aftermarket catalogs for Mercedes-Benz rear suspension repair, making it a practical choice when replacing a worn control arm on E-Class and SL-Class vehicles.

Common Problems This Part Can Help Address

• Rear suspension clunking or knocking from worn arm bushings
• Uneven rear tire wear caused by suspension geometry movement
• Loose or unstable rear-end handling over bumps and turns
• Excessive play in the rear right upper forward suspension link
• Alignment issues related to a worn control arm assembly

Installation Notes and Tips

Verify the rear right upper forward position before ordering, since this control arm is not adjustable and is application-specific. Inspect adjacent bushings, mounting points, and alignment components during replacement, and confirm the vehicle is not equipped with excluded suspension configurations such as the noted E300 air-suspension exception. Because mounting hardware is not included, reuse or source the correct hardware as needed for the repair.

Fits 2007-2012 Mercedes-Benz SL550, rear right upper forward. Fits 2007-2011 Mercedes-Benz CLS550, rear right upper forward. Fits 2004-2011 Mercedes-Benz SL600, rear right upper forward. Fits 2008-2009 Mercedes-Benz E300, rear right upper forward, W/O Airmatic Dual Control; without Air Suspension. Fits 2003-2009 Mercedes-Benz E320, rear right upper forward. Fits 2006-2009 Mercedes-Benz E350, rear right upper forward. Fits 2007-2009 Mercedes-Benz E550, rear right upper forward. Fits 2005-2009 Mercedes-Benz SL65 AMG, rear right upper forward. Fits 2007 Mercedes-Benz E280, rear right upper forward. Fits 2006 Mercedes-Benz CLS500, rear right upper forward. Fits 2003-2006 Mercedes-Benz E500, rear right upper forward. Fits 2004-2006 Mercedes-Benz E55 AMG, rear right upper forward. Fits 2002-2006 Mercedes-Benz SL500, rear right upper forward.

Quality Assurance

Delphi validates this suspension control arm through extreme-temperature testing and extended salt-spray exposure to support durability in real-world conditions. The brand’s OE-focused engineering and material analysis are used to help maintain fit consistency for Mercedes-Benz rear suspension service.